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SteamyTea

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Everything posted by SteamyTea

  1. Get the draughts sorted out, stop the wind blowing underneath the van. Then, assuming you have electricity, fit a cheap A2AHP. You may have a second use for it later i.e. heat workshop or garage, summer cooling in bedrooms.
  2. You will have to re-type @Binky so he gets a message. Not seen him on here for a while.
  3. Then what? Wait for bin day?
  4. https://www.thermalec.co.uk/calculator/
  5. I don't, they work just the same as a fridge. A fridge in reverse would produce electricity from a temperature difference.
  6. Laughing at your futility already. It has been a while since we have had a humdinger going. Maybe it is a winter thing when we all get cabin fever.
  7. Shall bring it over when I build the new one. Saves a trip to the dump.
  8. Told you before. 'man who goes to bed with problem: wakes up with solution'.
  9. Bloody spell checker. SEED
  10. Do all these hopeful research papers take into account power delivery? It drops off quite quickly as the store temperature drops.
  11. My house needs about 500W. It has a volume of 160m3. So about a tenth of the house size. But as you say. Just realised that is about the size of my shed.
  12. Yes, why I keep it in a jam jar on my mantle piece.
  13. Looks more like a banyan tree
  14. Most failled experiment don't get published.
  15. Shall I go around and 'charm' her.
  16. Tell her how brilliant fast your Broad Band is, and how it will be so much easier to run your business from home. Point out that there is enough parking and turning space for even quite large trucks. My neighbours still think I am a vivisectionists for the government and I do taxidermy for a hobby. Well one side does. The other thinks I am gynaecologist, all I said was 'acute angina', but her English is not too great.
  17. Are they allowed to do that. Some utilities have a statutory right of entry.
  18. I pretended to be that friend. Here is what it costs to heat a small section of pool. https://jubileepool.co.uk/pool-info/geothermal/ It was meant to be all GT, but as they were over enthusiastic amateurs, it all went wrong and they fitted a HP. So really just a GSHP. Odd choice as they have one if the world's largest bodies of seawater, that they pump in anyway, a few meters away. It is 34°C today, they are proud to say it is too warm. So they have no thermostat on it. They also have the phones switched off 'because it is Monday, we don't open Mondays'. They do, (expletive deleted)ing amateurs spending my money.
  19. One of the problems I found when doing my ResM was that nearly all the research is either small scale, i.e. load reduction to take the load of a large diesel generator, or purely academic i.e. what would happen if we turned fridges on and off in response to grid frequency fluctuation. We do have large scale grid modulation though load shedding, it is well managed and is based on historical scenarios i.e. kettles on at half time. Our grid is based on predictions i.e. weather, time of day, marginal generation capacity, voltage and frequency tolerances. If say a million automatic storage devices started to switch half a gig of power on and off in response to changes in parameters, when they decided it was right to do so, our grid would quickly become unstable. Case of tail wagging the dog. This is why, even though we have the technology, it is not done. Everything on our grid has to be controlled centrally, and the effects predictable. We have seen what happens when an unusual, but predictable event happens alongside another such event. https://www.independent.co.uk/news/uk/home-news/uk-power-cut-cause-national-grid-wind-gas-energy-latest-a9051016.html
  20. I am in the far SW of the UK. The Spring is cold, the sea has not warmed up. Makes for very mild autumn. Biggest weather related problems here are cloud cover and Northerly winds. Had a lot of Northerly winds this year. I take it your R values are in metric as NZ is all metric.
  21. Can't get more succinct than that.
  22. You find those files and I shall see how it correlates with grid frequency.
  23. If a solar house, or an interseasonal store were viable in the UK, there would be lots of working examples. Fact is, there isn't. If my memory is correct from when I studied this, we have a mean insolation of 135 W/m2 down here. The very best PV modules will, over a day, give you 15% efficiency. So around 20W/m2. Just not enough. Even ST, at 80%, only gives you, on average, 110W/m2, of low entropy energy. It is that low entropy that is the problem. You need a machine, or a Maxwell Daemon to make it useful. Redo all your thermal calculations on Kelvin scale and it highlights the problem nicely.
  24. It was still logging when I got home a few minutes ago. File was almost 7 meg. Just left it going and shall see what is happening in the morning. I should be able to calculate how many pulses have been missed. Would be happy if it was less than 1%.
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